/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.databus.transport.udp;

import studio.raptor.databus.command.Command;
import studio.raptor.databus.command.Endpoint;
import studio.raptor.databus.transport.Transport;
import studio.raptor.databus.transport.TransportFilter;

/**
 * 
 */
public class ResponseRedirectInterceptor extends TransportFilter {
    private final UdpTransport transport;

    public ResponseRedirectInterceptor(Transport next, UdpTransport transport) {
        super(next);
        this.transport = transport;
    }

    public void onCommand(Object o) {
        final Command command = (Command)o;
        // redirect to the endpoint that the last response came from
        Endpoint from = command.getFrom();
        transport.setTargetEndpoint(from);

        super.onCommand(command);
    }
}
